I see that a lot of CO2 laser cutters ship with orange-toned plastic windows.
Orange tint for blue lasers makes total sense to me. But for an infrared laser, I don’t see what the benefit could be. Given that clear glass and plastic absorb infrared so well that CO2 lasers engrave them, is there any value to tint? If there is, wouldn’t a blue tint be more likely to provide additional absorption?
It has been my assumption for Project #monocle that clear acrylic or polycarbonate would be fine for the lid window and be sufficient to handle any specular reflections, but I’d like to know ahead of time if I’m wrong!
(I still bought two pairs of CO2 laser rated safety glasses, of course!)